Has anyone else had a problem like mine? I notice all the rat droppings at the base of my Italian Cypress trees and stay out of that area which lines the back of my property. I contacted UCDavis today and said they are getting their water from my 1500 gal. koi pond and if that wasn't the case, they would get it from the neighbor's pool wouldn't they? How to get rid of them without spending too much money is my problem for now! The favorite part of my house is the koi pond my son built many years ago with all the koi and plants and flowers! I love this group and always learn from you all and enjoy the pics! Have a good night from Sunny CA!